Section Test:Meiosis

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This Section Test deals with the concepts of meiosis, one of the methods of cellular replication covered on the MCAT. The stages of meiosis, comparisons to the alternatives of meiosis, consequences of meiosis, and the genetics of meiosis are all covered. See Meiosis for the article relating to this section test.

Section Test

1. Does meiosis and mitosis describe the same process?

Yes they are.
Yes, but it's only called meiosis when it occurs in the testes or ovaries.
No, these words describe different processes.
No, meiosis occurs in eukaryotes while mitosis occurs in prokaryotes.

2. In meiosis the chromosome number is reduced to the haploid number in a diploid animal.

Yes, and this is a normal part of mitosis, too.
Yes.
No, it remains at the diploid number.
None of those above.

3. During which stage does DNA replication occur?

Prophase I.
Prophase II.
Metaphase I.
None of those above.

4. In which organs does meiosis occur?

The thyroid and parathyroid.
The ovary and testis.
The testis and seminiferous tubules.
The ovary and Graafian follicle.

5. What is meant by the term, "pairing of homologous chromosomes?"

It indicates that two different chromosomes (different genes on each) come together.
It indicates that two identical chromosomes (same genes with the same DNA sequences in each gene) come together.
It indicates that two similar chromosomes (same genes, but with potentially different DNA sequences in each gene) come together.
It is irrelevant, as this does not occur as part of meiosis.

6. In which stage of meiosis does crossing over occur?

Anaphase I.
Metaphase II.
Zygotene.
Prophase I.

7. Meiosis results in _____.

2 haploid daughter cells
4 haploid daughter cells
2 diploid daughter cells
4 diploid daughter cells

8. Meiosis is a type of cell division that produces:

zygotes
chromosomes
DNA
gametes

9. Which of the following distinguishes prophase 1 of meiosis from prophase of mitosis?

homologous chromosomes pair up
spindle forms
the nuclear membrane breaks down
chromosomes become visible

10. A cell with a diploid number of 24 undergoes meiosis, how many chromosomes are in each daughter cell?

6
12
24
48

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